Powershell commands:
Using this article you will be able to export all servers on your domain.
I will use the following attributes:
1.OperatingSystem
2.OperatingSystemHotfix
3.OperatingSystemServicePack
4.OperatingSystemVersion
The query script is:
Get-ADComputer -Filter * -properties | Format-list Name ,operatingsystemversion,operatings ystem,operatingservicepack,SystemHotFix | Out-file c:\users\administrator\desktop\Info.txt